Composition for roofing and paving



UNITED STATES PATENT OFFICE.

AROHIBALD K. LEE, OF GALVESTON, TEXAS.

COMPOSITION FOR ROOFING AND PAVING.

SPECIFICATION forming part of Letters Patent No. 257,501, dated May 9,1882.

Application filed February 20, 1882. lSpecimens.)

To all whom it may concern:

Be it known that I, AROHIBALI) K. LEE, a citizen of the United States,residing at Galveston, in the county of Galveston and State of Texas,have invented anew and useful Composition l'or Roofing, Paving, andother .Purposes, of which the following is a specification.

The object of my invention is to produce a compound which is strong,tenacious, and pliable, which will not be affected by climatic changes,and which will resist the corrosive action of acids and alkalies; and tothis end myinvention consists in a compound composed of asphaltum,pine-tar, and oxide of iron, as will more full y hereinafter appear.

In carrying out my invention I take of crude natural asphaltum twothousand pounds, (2,000 lbs.,) pine-tar fourhundred pounds, (400 lbs.)preferring the tar made by the combustion of the wood known as the Pimtsaastralus, or long-leaf pine--and tothese (the asphaltum and pine-tar) Iadd when in a perfect state of solution, two hundred pounds (200 lbs.)ot'oxide ofiron. These ingredients are combined by the action of heatuntil the water is entirely evaporated therefrom and ahomogeneous massis formed. The tar and the oxide of iron have a strong affinity for theasphaltum, and form a perfect composition, remarkable for itspliability, strength, and tenacity, and only excelled by rubber orgutta-percha, and which,

in point of fact, can be substituted for the tion enumerate some of themost important uses to which it can be applied. For paving purposes itmay be mixed with ground or pulverized stone, sand, or gravel, andspread on the road-bed or pressed into blocks. For root'- ing it may bespread on the roof-boards or applied to canvas or rooting-felt, eitherbefore or after it is put on the roof. For enameling cloth or leather itwill be found unsurpassed, as it .has a jet-black finish. For coveringburlap or canvas for sacks used in transporting or storing valuableores, superphosphates, chloride of lime, nitrate of soda-in fact, anyand all merchandise which requires covering to resist the corrosiveaction of acids or alkalies or any material which is liable to melt orliqueiy by exposure to the air-for insulating telegraph or telephonewires and formation of cables for submarine purposes, and as a base foran enamel for all metal work, it will be found of great value.

I do notlimit myself to the precise proportions of ingredients as hereinspecified, as it is obvious that they may be varied to a greater or lessextent without departing from the spirit of my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 18-- 1. A compound consisting ot natural as phaltum,pine-tar, and oxide of iron, in about the proportions specified, and forthe purposes set forth.

2. A new article of manufacture consisting of canvas or other textilefelted or fibrous labric saturated or coated, or both, with a compoundof natural asphaltum, pine-tar, and oxide of iron.

AROHIBALD K. LEE. Witnesses GILBERT O. Marcos, H. O. ALLnn.

